John Wall — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Middlesex-County, Massachusetts

Our Model Tree links this John Wall across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1905), then head of a 5-person household.

Age 35 b. ~1905 Male Head Born: Newfoundland Married

1940 Census Record Details

Census Year	1940
Location	Middlesex-County, Massachusetts
Surname	Wall
Given Name	John P.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Newfoundland
1935 Residence (City)	Belmont
1935 Residence (County)	Middlesex
Naturalization Status	Naturalized
Additional Details
Occupation	Electrician
Industry	Automobile Assembly
Class of Worker	PW
Hours Worked	44
Income (1939)	314
Highest Grade	H-4
1935 Residence	Massachusetts
Birth Country	Canada
Birthplace (normalized)	newfoundland
Occupation	Electrician
Township / Ward	Medford
Est. Birth Year	~1905

Household Members

Census records only state relationship to the household head. Pairwise kinship is derived (~90–95% accurate), not recorded. Step/blended families and boarders can break it.

5 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to John	Age	Birth yr
Ann Wall	Daughter	—	3	~1937
Mary Wall	Spouse	—	35	~1905
John Wall	Head	—	35	~1905
Joan Wall	Daughter	—	1	~1939
Mary Wall	Daughter	—		~1940

Census Appearances

1930

Middlesex, Massachusetts

Other, age 24

Middlesex, Massachusetts · implied b. ~1906 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Wall
Given Name	John J.
Relationship to Head	Nephew
Sex	M
Color / Race	White
Age	24
Marital Status	Single
Birthplace	Newfoundland
Naturalization Status	First papers filed
Year of Immigration	1925
Father's Birthplace	Newfoundland
Mother's Birthplace	Newfoundland
Occupation	Electrician
Industry	Radio tube mfg.
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Birth Country	Canada
Birthplace (normalized)	newfoundland

1940

Middlesex-County, Massachusetts

Head, age 35

Middlesex-County, Massachusetts · implied b. ~1905 — 5 household members

Surname	Wall
Given Name	John P.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Newfoundland
1935 Residence (City)	Belmont
1935 Residence (County)	Middlesex
Naturalization Status	Naturalized
Occupation	Electrician
Industry	Automobile Assembly
Class of Worker	PW
Hours Worked	44
Income (1939)	314
Highest Grade	H-4
1935 Residence	Massachusetts
Birth Country	Canada
Birthplace (normalized)	newfoundland

Model Tree

Linked across censuses

Our Model Tree links John Wall across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Wall

Head · 1940 · age 35 · b. ~1905 · Massachusetts

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Middlesex-County, Massachusetts Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01611-00712)

Line	Name	Age	Relation	Occupation	Birthplace
1	Louisa Zani	22	Daughter	Typist	Mass.
2	Yolanda E. Zani	20	Daughter	Teacher'S Assistant	Mass.
3	Richard P. Zani	13	Son	—	Mass.
4	Frederick C. Zani	10	Son	—	Mass.
5	Leonard P. Zani	7	Son	—	Mass.
6	Catherine A. Zani	3	Daughter	—	Mass.
7	Fred D. Newell	38	Head	Painter	New Hampshire
8	Catherine E. Newell	35	Wife	—	Mass.
9	Fred D. Jr. Newell	12	Son	—	Mass.
10	Robert Newell	6	Son	—	Mass.
11	Angus Graham	58	Head	Foreman	Canada
12	Mary Graham	47	Wife	—	Canada
13	Edward L. Boyington	56	Head	Salesman	Maine
14	Lillian Boyington	55	Wife	—	Newfoundland
15	Ralph Boyington	22	Son	Salesman	Mass.
16	Robert Boyington	22	Son	Planning Clerk	Mass.
17	Roland Boyington	19	Son	Errand Boy	Mass.
18	Donald Boyington	15	Son	—	Mass.
19	Earl H. Boyington	14	Son	—	Mass.
20	David L. Field	9	Grandson	—	Mass.
21	Simon S. Baltzer	79	Head	President	Nova Scotia
22	Bessie L. Baltzer	72	Wife	—	Canada
23	William F. Butt	32	Head	Carpenter	Newfoundland
24	Mabel D. Butt	31	Wife	—	Newfoundland
25	John P. Wall THIS PERSON	35	Head	Electrician	Newfoundland
26	Mary T. Wall	35	Wife	—	Mass.
27	Ann Wall	3	Daughter	—	Mass.
28	Joan Wall	1	Daughter	—	Mass.
29	Mary L. Wall	0	Daughter	—	Mass.
30	Walter M. Maccully	28	Head	Truck Driver	Mass.
31	Doris Maccully	26	Wife	—	Mass.
32	Annie Keardon	65	Head	—	Ireland
33	Matthew Keardon	37	Son	Welder	Southern Ireland
34	Joseph P. Keardon	32	Son	Chairman	Southern Ireland
35	Frank J. Corbett	46	Head	Janitor	Southern Ireland
36	Margaret Corbett	45	Wife	—	Southern Ireland
37	Josephine Corbett	22	Daughter	Cashier	Massachusetts
38	Francis M. Corbett	20	Son	Laborer	Mass.
39	Anna C. Corbett	17	Daughter	New Worker	Mass.
40	Helen E. Corbett	16	Daughter	—	Mass.

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.

Source: National Archives and Records Administration (NARA)

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